What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
Manufacturer communications
9Original wording in English
FORD
Reported code forms P27B4
This article supersedes TSB 22-2495 to update symptoms in the TSB title and issue, and an update to labor times, changing from MT time to actual time with a limit. Some of the vehicles listed in the Model statement…
FORD
Reported code forms P27B4
This article supersedes TSB 22-2491 to update labor times from M-time to AP-time and add a cap. Some of the vehicle listed in the model statement above may exhibit at least one of the following conditions: - Illuminated…
FORD
Reported code forms P27B4
Some 2022 F-150 Lightning vehicles may exhibit an illuminated red triangle indicator lamp with diagnostic trouble codes (DTC) P27B4 in the primary drive control module (PDCM) or the CSI is blinking red with P0A7F in the…
FORD
Reported code forms P27B4
Some 2021-2022 Mustang Mach-E built on or before 17-Sep-2022, 2022 e-Transit vehicles may exhibit an illuminated red triangle indicator lamp with diagnostic trouble code (DTC) P27B4 stored in the secondary on-board…
FORD
Reported code forms P27B4
This article supersedes TSB 21-2055 to update the Title, Issue, Action, vehicles affected and production fix date. Some 2020-2021 F-Super Duty vehicles equipped with a 6.7L engine built on or before 10-Feb-2021 may…
FORD
Reported code forms P27B4
This article supersedes TSB 20-2336 to update the Title, Issue, Action, vehicles affected and production fix date. Some 2020-2021 F-Super Duty vehicles equipped with a 6.7L engine built on or before 10-Feb-2021 may…
Check vehicle applicability
15A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Ford | E-TRANSIT | 2022 |
| Ford | F-150 | 2022 |
| Ford | F-250 SD | 2021 |
| Ford | F-250 SD | 2020 |
| Ford | F-350 SD | 2021 |
| Ford | F-350 SD | 2020 |
| Ford | F-450 SD | 2021 |
| Ford | F-450 SD | 2020 |
| Ford | F-550 SD | 2021 |
| Ford | F-550 SD | 2020 |
| Ford | F-650 SD | 2020 |
| Ford | F-750 SD | 2020 |
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.